Self-driving tractors do farm work in Xinjiang

A technician shows a mobile app with information on a self-driving tractor in a cotton field at Yaha Township of Kuqa County, northwest China's Xinjiang Uygur Autonomous Region, March 23, 2018. The smart tractor, with automatic navigation system, can do farm work itself including ploughing and seeding. (Xinhua/Hu Huhu)